Fix Android.IsolatedSplits.ContextCreateTime histogram name

The histogram files had ContextCreateTime, but Java had CreateContextTime. Oops.

Bug: 1150600
Change-Id: I6eac406e7d29bc46809623696bc0c7007212ebfb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2583136
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Auto-Submit: Clark DuVall <cduvall@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835523}

chrome/android/java/src/org/chromium/chrome/browser/base/SplitChromeApplication.java

@@ -74,7 +74,7 @@ public class SplitChromeApplication extends SplitCompatApplication {
             }
             long startTime = SystemClock.uptimeMillis();
             Context context = super.createContextForSplit(name);
-            RecordHistogram.recordTimesHistogram("Android.IsolatedSplits.CreateContextTime." + name,
+            RecordHistogram.recordTimesHistogram("Android.IsolatedSplits.ContextCreateTime." + name,
                     SystemClock.uptimeMillis() - startTime);
             return context;
         }